Black Hole evaporation: A Perspective from Loop Quantum Gravity

Abstract

A personal perspective on the black hole evaporation process is presented using as guidelines inputs from: (i) loop quantum gravity, (ii) simplified models where concrete results have been obtained, and, (iii) semi-classical quantum general relativity. On the one hand, the final picture is conservative in that there are concrete results that support each stage of the argument, and there are no large departures from general relativity or semi-classical gravity in tame regions outside macroscopic black holes. On the other hand it argues against certain views that are commonly held in many quarters, such as: persistence of a piece of singularity that constitutes a part of the final boundary of space-time; presence of an \emph{event} horizon serving as an absolute barrier between the interior and the exterior; and the (often implicit) requirement that purification must be completed by the time the `last rays' representing the extension of this event horizon reach ${\mathcal{I}}^{+}$.

25 pages, 8 Figures. Invited article for a special issue "Probing New Physics with Black Holes", edited by Aurelien Barrau

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Cited by in corpus (50)

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• Constraints on the rotating self-dual black hole with quasi-periodic oscillations
• Properties of the spherically symmetric polymer black holes
• Spacetime Singularities and Cosmic Censorship Conjecture: A Review with Some Thoughts
• Unitarity of Entanglement and Islands in Two-Sided Janus Black Holes
• Gravitational lensing by a black hole in effective loop quantum gravity
• Improved Effective Dynamics of Loop-Quantum-Gravity Black Hole and Nariai Limit
• Spherical symmetric gravitational collapse of a dust cloud: polymerized dynamics in reduced phase space
• Charges and Fluxes on (Perturbed) Non-expanding Horizons
• Constraints on self-dual black hole in loop quantum gravity with S0-2 star in the Galactic Center
• Exponential corrected thermodynamics of black holes
• Analogue gravity and the Hawking effect: historical perspective and literature review
• Observational tests of the self-dual spacetime in loop quantum gravity
• Quantum dynamics of the black hole interior in LQC
• Exploring non-singular black holes in gravitational perturbations
• Trapping Horizons of the Evolving Charged Wormhole and Black Bounce
• Null Infinity as a Weakly Isolated Horizon
• Null Infinity and Horizons: A New Approach to Fluxes and Charges
• Observational tests of quantum extension of Schwarzschild spacetime in loop quantum gravity with stars in the galactic center
• Finite-distance gravitational deflection of massive particles by a rotating black hole in loop quantum gravity
• Understanding quantum black holes from quantum reduced loop gravity
• Quasi-Local Black Hole Horizons: Recent Advances
• Particle dynamics and the accretion disk around a Self-dual Black Hole immersed in a magnetic field in Loop Quantum Gravity
• Semiclassical black holes and horizon singularities
• Motion of spinning particles around a polymer black hole in loop quantum gravity
• Nonexistence of quantum black and white hole horizons in an improved dynamic approach
• Black Hole Evaporation in Loop Quantum Gravity
• Models of cosmological black holes
• Symmetric black-to-white hole solutions with a cosmological constant
• Quantum vacuum effects on the formation of black holes
• On the improved dynamics approach in loop quantum black holes
• Black bounces and remnants in dilaton gravity
• A dialog on the fate of information in black hole evaporation
• On black holes as macroscopic quantum objects
• Lessons from gauge fixing and polymerization of loop quantum black holes with a cosmological constant
• A new quantization scheme of black holes in effective loop quantum gravity
• Horizon-bound objects: Kerr--Vaidya solutions
• Unitarity and the information problem in an explicit model of black hole evaporation
• Thermodynamics of Black Holes, far from Equilibrium
• Exotic Encounters: Buchdahl's Conditions and Physical Black Holes
• Expansion operators in spherically symmetric loop quantum gravity
• Exploring non-perturbative effects on quasi-topological black hole thermodynamics
• Semi-classical imprints on quasinormal mode spectra
• Dynamical Horizon Segments and Spacetime Isometries
• Dynamical Horizons and Black Hole Soft Hair
• Extended geometry of Gambini-Olmedo-Pullin polymer black hole and its quasinormal spectrum
• Black holes and their horizons in semiclassical and modified theories of gravity